<template>
  <div class="permission-container">
    <div class="app-container">
      <!-- 表格 -->
      <el-card>
        <div style="text-align: right; margin-bottom: 20px">
          <el-button type="primary" size="small" @click="hAdd('',1)">添加权限</el-button>
        </div>
        <el-table border :data="list" row-key="id">
          <el-table-column label="名称" prop="name" />
          <el-table-column label="标识" prop="code" />
          <el-table-column label="描述" prop="description" />
          <el-table-column label="操作">
            <template #default="{row}">
              <el-button v-if="row.type === 1" type="text" @click="hAdd(row.id,2)">添加</el-button>
              <el-button type="text" @click="hEdit(row.id)">编辑</el-button>
              <el-button type="text" @click="hDel(row.id)">删除</el-button>
            </template>
          </el-table-column>
        </el-table>
      </el-card>
      <!-- 添加功能的弹层 -->
      <el-dialog
        :title="isEdit?'编辑':'新增'"
        :visible.sync="showDialog"
        @close="resetForm"
      >
        <el-form ref="formRef" label-width="100px" :model="formData" :rules="rules">
          <el-form-item label="权限名称" prop="name">
            <el-input v-model="formData.name" />
          </el-form-item>
          <el-form-item label="权限标识" prop="code">
            <el-input v-model="formData.code" />
          </el-form-item>
          <el-form-item label="权限描述" prop="description">
            <el-input v-model="formData.description" />
          </el-form-item>
          <el-form-item label="权限启用">
            <el-switch
              v-model="formData.enVisible"
              active-text="启用"
              active-value="1"
              inactive-text="不启用"
              inactive-value="0"
            />
          </el-form-item>
        </el-form>
        <template #footer>
          <div style="text-align: right;">
            <el-button @click="showDialog = false">取消</el-button>
            <el-button type="primary" @click="hSubmit">确定</el-button>
          </div>
        </template>
      </el-dialog>
    </div>
  </div>
</template>

<script>
import { getPermissionList, addPermission, delPermission, getPermissionDetail, updatePermission } from '@/api/modules/permisson'
import { transDataToTreeData } from '@/utils/index'
export default {
  data() {
    var validCode = (rule, value, callback) => {
      let existCodeList = this.originList
      // console.log('existCodeList', existCodeList)
      if (this.isEdit) {
        existCodeList = this.originList.filter(item => item.id !== this.formData.id)
      }
      if (existCodeList.includes(value)) {
        callback(new Error(`请输入与${value}不同的值`))
      } else {
        callback()
      }
    }
    var validName = (rule, value, callback) => {
      let newList = this.originList.filter(item => item.pid !== this.formData.pid)
      if (this.isEdit) {
        newList = this.originList.filter(item => item.pid === this.formData.pid && item.id !== this.formData.id)
      }
      const existCodeList = newList.map(item => item.name)
      if (existCodeList.includes(value)) {
        callback(new Error(`请输入与${value}不同的值`))
      } else {
        callback()
      }
    }
    return {
      originList: [], // 原始的权限列表,不是树形图的
      isEdit: false, // 控制是否为编辑状态
      showDialog: false, // 控制新增弹窗的显示与隐藏
      list: [], // 获取权限列表
      formData: {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      },
      rules: {
        name: [
          { message: '不能为空', required: true, trigger: 'blur' }, { validator: validName, trigger: 'blur' }

        ], // 名称
        code: [
          { message: '不能为空', required: true, trigger: 'blur' },
          { validator: validCode, trigger: 'blur' }
        ], // 权限标识
        description: [{ message: '不能为空', required: true, trigger: 'blur' }], // 描述
        enVisible: '0' // 开启
      }
    }
  },
  created() {
    this.loadPermissionList()
  },
  methods: {
    // 重置表单
    resetForm() {
      this.$refs.formRef.resetFields()
      this.formData = {
        name: '', // 名称
        code: '', // 权限标识
        description: '', // 描述
        enVisible: '0', // 开启
        pid: '', // 添加到哪个节点下
        type: '' // 类型
      }
    },
    // 编辑功能
    hEdit(id) {
      this.isEdit = true
      this.showDialog = true
      this.loadPermissionDetail(id)
    },
    async doEdit() {
      try {
        const res = await updatePermission(this.formData)
        console.log('updatePermission', res)
        this.loadPermissionList()
        this.showDialog = false
        // 保存数据
      } catch (err) {
        console.log('updatePermission', err)
      }
    },
    // 获取单个权限详情
    async loadPermissionDetail(id) {
      try {
        const res = await getPermissionDetail(id)
        console.log('getPermissionDetail', res)
        this.formData = res.data
        // 保存数据
      } catch (err) {
        console.log('getPermissionDetail', err)
      }
    },
    // 删除功能
    hDel(id) {
      this.$confirm('您确定要删除此内容吗').then(async() => {
        const res = await delPermission(id)
        // console.log(res)
        if (res.code !== 10000) return this.$message.error(res.message)
        this.$message.success(res.message)
        this.loadPermissionList()
      }).catch(err => err)
    },
    // 新增功能
    hAdd(id, type) {
      this.showDialog = true
      this.formData.type = type
      this.formData.pid = id
    },
    async doAdd() {
      try {
        const res = await addPermission(this.formData)
        console.log('addPermission', res)
        this.loadPermissionList()
        this.showDialog = false
        // 保存数据
      } catch (err) {
        console.log('addPermission', err)
      }
    },
    hSubmit() {
      this.$refs.formRef.validate((valid) => {
        if (!valid) return
        this.isEdit ? this.doEdit() : this.doAdd()
      })
    },
    // 获取权限列表
    async loadPermissionList() {
      try {
        const res = await getPermissionList()
        console.log('getPermissionList', res)
        this.originList = res.data
        this.list = transDataToTreeData(res.data)
        // 保存数据
      } catch (err) {
        console.log('getPermissionList', err)
      }
    }
  }
}
</script>

